Two-wire horn button-switch.



s'. o. WHITE.

TWO WIRE HORNBUTTON SWICH.

APPucATloN mit) D'Ec. 11, 1914.

SAMUEL Gli/1% 'WI-ETE, 0F MUNCIE, INDIANA., ASSIGNOR T0 WARNER GEARCOMPANY,

E' MUNCIE, INDIANA, A. CORPORATTON 0F INDIANA.

TWO-WERE HORN :BUTTON-SWITCH.

recense.

ASpecification of Letters Eatent. l Patentatil Dec, 12, 1916..

Application filed December 17, 1914. Serial No. 877,726.

.To all whom it may concern:

Tie it known that T, SAMUEL `01m WHITE, a citizen. of the Unit-edStates, residing at Muncie, in the county of Delaware, State of Tndiana,have invented a new and useful y Improvement in Two-Wire Horn Button-Switches, of which the following is a speciiication. y

The object of this invention is to locate a switch for controlling thesounding of an electric horn on the steering Wheel of an automobile, thesaid switch havin'g an easily deprcssible button carried thereby, v`andhaving two wires running into the hub of the spark controlling lever` onwhich the switch is mounted. This places the switch in a most convenientposition for emergency. use, and avoids the use of any part of the'steering niechanisinas-,a part of the circuit.

The invention consists of the novel fea tures oi" constructionhereinafter described, pointed out in the claim and shown in theaccompanying drawings in which:

Figure 1 is a diametrical section through the switch and hub of thelever, the lever be-A ing `4partly broken and shown in side elevation.Fig. 2 is a section on the line 2--2 of Fig. 1. Fig. 3 is a modificationof the construction shown in Fig.' 1.

Tn these drawings 1 is the spark tube and the spark controlling leverkeyed to the tube these being of usual construction. The hubportion 3 ofthe lever 2 is recessed as at t and in said recess is fitted a block 5of suitable insulating material, the underface of the bloeit being outout as at 6, and the upper face being centrally recessed as at 7. Withinthis last mentioned lrecess is arranged a metal disk 8,centrally`perforated, and one ot the conductor wines 9, led up throughthe steering rod passes through the perforation ot the disk and issoldered or otherwise suitably secured to the disk. 'Embedded in theblock and encircling the recess, and spaced and insulated therefrom, isa ring 10, of conducting material. The second conductor wire 11 entersthe undercutiportion of the block 5 and is secured to the inner face ofthe ring 10. Secured in any lsuitable or preferred manner to the hub 3,and fitting 4over the same, is a cap 12, and the top of the cap isprovided with a suitable opening through which works the shank 13 of abutton 14. The inner end of the shank carries a washer 15, insulatedfrom the cap 12, by a fiber plate 16. A. coil spring 17 is interposedbetween the disk 8 and the Washer 15.

The circuit is closed by depressing the b utton so that the washer 15will engage the ring 10, the circuit being through wire 9,- disk 8,spring 17, Washer 15, ring 10 and thence back by the conductor wire 11.

"inthe constructionshown in Fig. 1 the button 14 is formed of anon-conducting material. This is not essential and in Fig. 3l have showna modified form lin which the button is of metal 19 and the shank 2O isinclosed and insulated from the cap 12 by a sleeve 21 of insulatingmaterial.

lt will be notedthat in this construction no part of the steering gearis employed as a part of the circuit.

W'hat T claim is:

An electric switch, comprising a hub hav ing a recess therein, aperforated cap fitting over said hub, a block of insulation ar ranged insaid recess, said block recessed in its upper face, and cut out on itsunder face, a metal disk arranged in therecess of the block, a springmounted thereon, a button having a shank depressible throu h saidperforated cap" and normally held 1n elevated position by the spring, aconductor ring embedded in the block, aw contact late carried by theinner end of the button s ank and engaged by the spring, and electricconnections connected respectively to said disk and ring.

SAMUEL ORR WHITE. Witnesses:

RAY P. Jol-uvson, M. M. EDGAR.

